Table 11: Maintenance of anesthesia (n = 125).

Maintenance of anesthesia

PONV

RR (95%CI)

Yes n (%)

No (%)

Type of Inhalational agent

Halothane

1 (12.5)

7 (87.5)

0.37 (0.06-2.33)

Isoflurane

40 (34.2)

77 (65.8)

Referent

Mode of ventilation

Spontaneous

2 (25.0)

6 (75.0)

0.75 (0.22-2.56)

IPPV

39 (33.3)

78 (66.7)

Referent